java - 复制所有 Activity 而不是[仅复选框和文本](待办事项列表 Android 应用程序)

Question

我正在尝试制作待办事项列表应用程序。这里的设计“https://i.ibb.co/cXnQ9dP/Capture.png”

我从“https://www.vogella.com/tutorials/AndroidListView/article.html”项目(15.1.模型和Listview之间的交互)获得了框和文本代码，但我将XML代码放入我现有的XML Activity 中[不在新 Activity 中]并在super中更改了 Activity 名称(上下文，R.layout.rowbuttonlayout，列表)；和 view = inflator.inflate(R.layout.rowbuttonlayout, null);我的主要 Activity 名称

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.mando.todolist.new_list">
.............background and buttons code here............
<LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignStart="@id/plus"
        android:orientation="horizontal"
        android:paddingTop="205dp"
        android:id="@+id/repeat_layout"
        >



        <CheckBox
            android:id="@+id/check"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="4px"
            android:layout_marginRight="10px" >
        </CheckBox>

        <TextView
            android:id="@+id/label"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@+id/label"
            android:textSize="50px"
            android:layout_alignRight="@id/check"
            >

        </TextView>
    </LinearLayout>

public InteractiveArrayAdapter(Activity context, List<Model> list) {
        super(context, R.layout.activity_new_list, list);
        this.context = context;
        this.list = list;
    }

    static class ViewHolder {
        protected TextView text;
        protected CheckBox checkbox;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View view = null;
        if (convertView == null) {
            LayoutInflater inflator = context.getLayoutInflater();
            view = inflator.inflate(R.layout.activity_new_list.,null);
            final ViewHolder viewHolder = new ViewHolder();
            viewHolder.text = (TextView) view.findViewById(R.id.label);
            viewHolder.checkbox = (CheckBox) view.findViewById(R.id.check);
            viewHolder.checkbox
                    .setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

                        @Override
                        public void onCheckedChanged(CompoundButton buttonView,
                                                     boolean isChecked) {
                            Model element = (Model) viewHolder.checkbox
                                    .getTag();
                            element.setSelected(buttonView.isChecked());

                        }
                    });
            view.setTag(viewHolder);
            viewHolder.checkbox.setTag(list.get(position));
        } else {
            view = convertView;
            ((ViewHolder) view.getTag()).checkbox.setTag(list.get(position));
        }
        ViewHolder holder = (ViewHolder) view.getTag();
        holder.text.setText(list.get(position).getName());
        holder.checkbox.setChecked(list.get(position).isSelected());
        return view;
    }
}

public class new_list extends ListActivity {

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        // create an array of Strings, that will be put to our ListActivity
        ArrayAdapter<Model> adapter = new InteractiveArrayAdapter(this,
                getModel());
        setListAdapter(adapter);
    }

    private List<Model> getModel() {
        List<Model> list = new ArrayList<Model>();
        list.add(get("Linux"));
        list.add(get("Windows7"));
        list.add(get("Suse"));
        list.add(get("Eclipse"));
        list.add(get("Ubuntu"));
        list.add(get("Solaris"));
        list.add(get("Android"));
        list.add(get("iPhone"));
        // Initially select one of the items
        list.get(1).setSelected(true);
        return list;
    }

    private Model get(String s) {
        return new Model(s);
    }
}

输出是所有 Activity 已被复制[包括背景和按钮]，而不是仅在同一 Activity 中复制带有文本的复选框

Answer 1

将背景和按钮移动到放置 ListView 的 xml 文件中它应该看起来像这样，因为您在 CheckBox 所在的位置使用的项目 xml 是用于 ListView 的项目 xml，如果您但是按钮，它也会重复

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <!-- background and buttons code here -->
    <ListView
        android:id="@id/android:list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:headerDividersEnabled="true"/>

</LinearLayout>